3D track reconstruction of low-energy electrons in the MIGDAL low pressure optical time projection chamber

We demonstrate three-dimensional track reconstruction of electrons in a low pressure (50 Torr) optical TPC consisting two glass GEMs with an ITO strip readout CF4 and CF4/Ar mixtures. The reconstructed tracks show variety event topologies, including short from photoelectrons induced by 55Fe 5.9 keV X-rays long gamma ray interactions beta decays. Algorithms for identification ridge detection are discussed as well multiple methods integrating information the camera image waveforms goal full 3D track.